1.10
- Installation now works (i.e. can now be put in global lib & include directories)
- Various doc fixes (proper inclusion in modules, typos, updates..)
- anifem has been rename to anifem
- Total redesign of matrix and RHS generation:
equation_c and descendants have been split into seperate classes for rhs and matrix
generation and a namespace for recovery functions. This requires the creation of more objects
in solvers, but it is signifiacntly simpler to extend the generator class hierarchies.
1.9
- New gauss_c interface
- Added SUPG weighting to volumedata_c, consequently introduced solutionshape/weightshape in place
for shape function methods.
- New, more general matrix solver interface (in systemmatrix_c).
- More consistent recovery routines (all static, in equation_c descendants).
- General (non-linear) stiffness matrix computation and finite deformation analysis added
to solid_c (only u-formulation).
- Geometric non-linear structure analysis (only u-formulation).
- Neo-Hookian hyperelasticity is provided as an example for a non-linear material model.
- vec2_t has receiverd the equivalent of almost all functions that are available for 3-space
vecotrs.
1.8
- Fast spatial look-ups with spacehash_c (only very simple, pay attention to initialization w/
large domains).
- Edge collapse
- new abstraction for domains: domaindata_c
- New edgelist_c implementation, elimination of redundancy between surfacemodel_c and
volumemodel_c w.r.t edge administration.
- Stronger abstracton through visenvironment_c interface.
- Tidied-up anispace documentation
- random_idxtriplet_c has been eliminated (misleading name), and idxtriplet_c is now directly
used for ordered tripples.
- Fixed documentation of idx.hxx
- Vector-valued problems can now more easily be treated as 3 scalar-valued problems.
- Components of a vector-valued problem can be solved for in parallel with pthreads
- Fixed "dirichlet_c::subtract_extension" for subset settings.
1.7.2
- Bug fix in streamline_c: seeding area is now really that specified by the user.
1.7.1
- Critical bug fixed in model_c::set_vertexcapacity
- Bug: traction computation
1.7
- density and diffusion coefficients are now internal states of the respective classes
- A new field visualization method: arrows_c
- The meshimport_c mesh generator no longer introduces additional boundary (Steiner) points.
- ATTENTION: the order of arguments in vector_boundary_c has changed for consistency reasons.
- idxlist_c now provides some basic set arithmetic.
- changes in animath GL: fieldvis_c changed into streamlines_c, fieldvis_n is now an entire
module for field visualisation tasks.
- More informative names for index map routines in equationmap_c, *_boundary_c, surfacedata_c.
- The unnecessary class "enhanced_volumemodel_c" has been merged with "volumemodel_c".
- FSI-capability is now also ensured with interpolation order >= 2 (was broken since 0.2).
- volumedata_c/surfacedata_c initialization has changed: no more separate volume specification
in surfacedata_c. volumedata_c now directly incorporates the index mappings to the contained
subset -> requires an additional update_maps
- cfd_c, solid_c interfaces have been simplified w.r.t. pressure solution space
and surfaces data structures.
- Naming of some members of boundary classes is now more consistent.
- Bug-fix: Convergence analysis distinguishes between curved and straight elements
- Bug-fix: surfacedata_c::extract_axisaligned_nodes now only extracts edge-midpoints if it's an
instance of quadratic_n::surfacedata_c.
- More sensible (although not for traction considerations) definition of shape function gradients
on surface patches.
- New unit test for the advection matrix that replaces the flawed advection test problem
for verification of the advection matrix.
- New boundary traction and stress recovery routines in cfd_solver_c, solid_c, with verification in
unittests/test_traction.cxx
- More convenient primitive definition in surfacemodel_c.
- A method for defining surface normals' orientation in model_c.
- Consolidated visualisation interface.
1.6.1
- Critical bug: local evaluation of shape function gradients is fixed.
1.6
- Added cfd_solver_c as a base class for CFD solvers
- solid_c unifies structural analysis interface
- now supports generalized/anisotropic elasticity, especially orthotropic materials
- The implementation of curved element coordinates has been made more robust
- New type of naming has been applied to several classes coordinate->coord_c,
meshimport->meshimporter_c, linear->linear_n, quadratic->quadratic_n, ....
- The unit tests have been updated.
- Fixed documentation
- Index checking is now done in all important volume/surfacedata_c routines for simplification of
e.g. matrix generator development.
- New arithmetic routines in systemmatrix_c for component-wise operations
- Minor enhancements of the solid_c and cfd_c interfaces.
1.5.1
- Bug fixes in streamlines_c
- Improved dimension checking in streamlines_c
1.5
- changed naming scheme: e.g. indexexception -> idxexception_t, volumemodel -> volumemodel_c
- volumesupport and surfacesupport have been integrated into volumemodel_c, surfacemodel_c
and the domaininformation classes.
- LU factorization via SparseSuite (UMFPACK)
- Preconditioned CG and GMRES of sparselib/IML made available for iterative solution
- New modelvis_c class replaces drawable_domain.
- Improved GL interface.
1.1
- New version numbering policy
- Phantom routines equation::decompose_matrix and equation::decompose_rhs have been removed.
- GL2PS is now still optional with enabled basic OpenGL-support
- Phantom routines in surfacesupport have been removed.
- fluid <-> elasticity confusion with viscosity mu vs. shear modulus G has been resolved
- Some unverified and unrequired routines have been removed from the linear elasticity module.
- The documentation has been corrected at various places.
- Field visualization with stream lines is coming up (still highly instable code)
0.2
- multiple changes of names (volumeinfo, systemmatrix, ...)
- The subset differention is, now, already made in volumeinfo.
- Namespaces corresponding to the order of interpolation have been introduced.
- Quadratic interpolation with straight edges is available.
- portation of fluid solvers and elasticity for second order Taylor-Hood element
- more safeguards in boundary condition specification
- (text) references added for fluid dynamics equations
- Shape function gradients now include non-zero interior node function gradients in the surface.
- several new methods in systemmatrix
- assembly of compound equation systems
- TetGen, a generic mesh generator, is now available through the meshimport-class interface.
- Trilinos, as a linear algebra back-end, has been replaced by the more light-weight
LSolver of Christian Badura.
- Integration of MGMRES of Lili Ju and John Burkhardt.
- Simultaneous satisfaction of Dirichlet BC has been updated and verified.
- Dirichlet BC nodevalue computation from Galerkin projection has been updated and verified.
- Updated credits for mesh generator, and linear solvers
- A new scheme for simultaneous pressure/displacement computation in linear elasticity has been
added and tested with a unit test.
- displacement-only formulation linear elasticity has been adapted for higher order interpolation.
- Some more system reduction wrappers for enhanced convenience in "dirichlet_boundary".
- glut/OpenGL no longer a mandatory requisite
- several enhancements of the OpenGL interface
- optional index checks via animath::check_index (global function in animath_global.hxx)
- conservative form of cbs advection has been added.
- stabilized_galerkin and cbs have been merged in the new class cfd_c.
- bitmap screen export has been made available in gl_environment_c.
- rendering to accumulation buffer has been enabled (gl_environment_c).
- mat3_t-matrices can be PLU factorized (improved computation of inverse element Jacobians).
- Dirichlet value assignment to higher-order nodes has been simplified.